ELASTIC IMPRESSION MATERIALS • Definition: www.indiandentalacademy.com 10. Impression materials Elastic Chemical reactions Irreversible Alginate Elastomers Polysulphides Polyethers Condensation silicon Addition silicon Temperature change Reversible Agar hydrocolloid Chemical reactions Irreversible Plaster of Paris ZnO Eugenol Temperature change Reversible Impression … See our User Agreement and Privacy Policy. Compatible with cast & die materials & does not need separating medium. Although a compressive test was selected to measure the properties of tooth structures in Figure 4-5, the elastic modulus can also be measured by means of a … Different types of impression materials are available. 0 De insertados. Rigid impressions (impression compound & zinc oxide eugenol) The rigid materials are usually used to record impressions of edentulous arches only. Elastic impression materials are those that remain in an elas-tic or flexible state after they have been removed from the mouth. Permlastic is a polysulfide, condensation-cured, elastomeric impression material in three viscosities. The mix should be a smooth paste, free of air bubbles, which may appear on the surface of the impression leading to inaccuracy. See our Privacy Policy and User Agreement for details. Elastomeric materials include polysulfide, polyether, condensation-cured silicone, and addition-cured silicone. 7. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Elastic materials have a soft consistency but after setting, they become elastic. alginate impression materials mcqs carthagocraft de. Material should be biocompatible Material should be economical Should be compatible with die and cast materials Should record the teeth and tissue accurately www.indiandentalacademy.com 9. elastomeric Impression DENTAL material 1. The plaster should be mixed with water or an anti-expansion solution in the ratio of 100g to 50-60ml. Impression materials that have been exposed to infected saliva and blood provide a significant source of cross contamination[1]. You can change your ad preferences anytime. MHR. Have adequate strength so that it will not break or tear whileremoving from the mouth. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Classification of Elastomeric Impression materials: Till now the elastomeric impression materials are divided into 3 types based on the material used Elastic impression materials can be further divided into hydrocolloid and elastomeric impression. Elastic impression materials 1. download file buhn01 hol es. While usually used in single-mix, it can be used with Light-Bodied Permlastic for crown and bridge impressions. Elastic impression materials Saransh Malot. 1. If you continue browsing the site, you agree to the use of cookies on this website. 0. Impression Waxes Impression Plaster . 0 From Embeds. Non-Elastic Impression Materials. 0 ... stability. After the preparation, they are placed inside impression trays. – In dentistry, we take impressions of teeth and their supporting structur es. En SlideShare. hydrocolloids impression materials agar and alginate. Non elastic impression materials 1. Elastomeric Impression Materials 2. Looks like you’ve clipped this slide to already. Non-elastic materials are generally not used for taking impressions of crown preparations because of their inability to accurately record undercuts. General Comments – Impression materials are used to make replicas (models or casts) of t eeth and other oral tissues. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Impression compound 2. elastic impression materials introduction to elastomers. Posses elastic properties with freedom from permanentdeformation after strain. Impression Plaster 3. 91 Comentarios. They are easy to handle and their accuracy is pretty good. According to philips scienceof dental materials impression materials … 2/23/2016 17. Impression materials A brief introduction Dr saransh malot 2. Clipping is a handy way to collect important slides you want to go back to later. department of prosthodontics m.a.r.d.c. Elastic Impression Materials Hydrocolloids Vinay Pavan Kumar .K 1st year MDS Dept of Prosthodontics AECS Maaruti College of Dental Sciences 2. Thus, elastic modulus is not a measure of its plasticity or strength. Compound impression can be added or corrected. The materials. AECS Maaruti College of Dental Sciences. If you continue browsing the site, you agree to the use of cookies on this website. Vinay Pavan Kumar .K Casts (positive reproductions) are created from dental impressions and are used to fabricate various dental prostheses. Follow Published on Aug 7, 2014. 0 Intégrations. Elastomeric = Rubber-like polymers that show an elastic behavior at the time of load application These polymer molecules have weak interaction in between (Van der Wall forces), although they are tied together in 3D network. Now customize the name of a clipboard to store your clips. Téléchargements . 1- Natural gum 2- Spandex or lycra Butyl Rubber (GDP) 4- Fluoroelastomer 5- Elastomers 6- Ethylene-propylene rubber (EPR) 7-Resilin 8- Styrene-butadiene rubber (SBR) 9- Chloroprene 10-Elastin 11- Rubber Epichlorohydrin 12- Nylon Nylon 13- Terpene 14- Isoprene Rubber 15- Poilbutadiene 16- Nitrile Rubber 17- Vinyl stretch 18- Thermoplastic elastomer 19- Silicone rubber 20- Ethylene-propylene-diene rubber (EPDM) 21- Ethylvinylacetate (EVA or foamy gum) 22- Halogenated butyl rubbers (CIIR, BIIR) 23- Neopre… 7 ↓ ↓ ↓ ↓ I 1920 I 1930 I 1 940 I … Sur SlideShare. Upcoming SlideShare. You can change your ad preferences anytime. See our Privacy Policy and User Agreement for details. Regular Permlastic is recommended for partial- or full denture impressions because it has a high degree of flow that will register the finest detail. silicone based impression materials condensation silicone aamir godil first year p.g. The term elastic as applied to impression materials is fairly unequivocal since the materials which form this group all possess the ability to be stretched or compressed and give a reasonable degree of elastic recovery following strain. Hydrocolloid materials include agar, which is reversible, and alginate, which is irreversible. Hydrocolloid impression materials used in dentistry are based on colloidal suspensions of polysaccharides in water. alginate impression materials mcqs download. BDS. com. Partages. Descargas. Materials with a high elastic modulus can have either high or low strength values. On SlideShare. the material is non-elastic, so cannot be used in undercut areas. Impression materials used for advanced operative procedures such as crown and bridgework must have elastic properties to allow the removal from undercut areas in the mouth without creating permanent distortion; these can be either water based (hydrocolloids) or synthetic elastomers. Now customize the name of a clipboard to store your clips. Technique, accuracy, taste, ease of manipulation, cost, dimensional stability a… Impression should be dimensionally stable till the cast is poured. Impression materials Rigid Impression plaster Zinc Oxide Eugenol Impression compound Impression waxes Elastic Hydrocolloid Elastomers Reversible hydrocolloid Irreversible hydrocolloid Polysulfid es Silicones Polyether s 5. The former are used for edentulous patients and for interocclusal records whereas the latter are for dentate patients. To separate cast from the impression, use warm water. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Zinc Oxide Eugenol 4. As the material is reversible, it can be re-used, but after sterilization. Impressions are used in the dental surgery to produce accurate (varying degrees of accuracy) negative reproductions of the patients’ teeth, surrounding tissues and dental arches. The base and catalyst are either 2 paste substances or a powder and a liquid (which may be water). Clipping is a handy way to collect important slides you want to go back to later. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Looks like you’ve clipped this slide to already. Agar Hydrocolloid was the first successful elastic impression material to be used in dentistry. Elastic impression materials - abhishek kavlekar Abhishek Kavlekar. Elastic impression materials. 2. 6. If you continue browsing the site, you agree to the use of cookies on this website. Impression Materials A. Hence impression materials are classified as being elastic or non-elastic. 0. mcqs in dental materials jaypee brothers. alginate impression materials mcqs ankrumax de. 4. mcqs in dental materials 1st edition elsevier. They could be described as possessing rubbery characteristics. prosthodontics impressions non elastic impression materials. 104 Actions. 9 Acciones. Hydrocolloids Definition Classification Composition Properties Manipulation Advantages and disadvantages 3. Hydrocolloid impression materials. Hydrocolloids Be able to be electroplated Be compatible with die and cast materials 3. 3 579 ... Elastic impression materials/ dentistry online Indian dental academy. Upload; Login; Signup; Submit Search. There are several classification. Many contagious diseases such as AIDS, hepatitis, herpes I and II, tuberculosis, and many others can be prevented by practical control of infection in the dental office. … 0 Issues des intégrations. Elastic impressions (hydrocolloids) 1. Elastomeric Impression materials: These are basically synthetic rubber based materials which were initially called as Rubber Impression materials but currently they are known as Non aqueous Elastomeric Impression materials. Silicone based impression materials Aamir Godil. Loading in … 5 × 1 of 87 ; Elastic impression materials/ dentistry online 13,655 views. Elastic Impression Materials: Hydrocolloids 18.1 Introduction. Compartido. Elastic Impression Materials 1. Non elastic impression materials ASST PROFESSOR Dr Mumtaz ul Islam B.Sc. SlideShare Explore Search You. 0 Número de insertados. Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental prof… These supporting structures include gingiva, a lveolar bone or residual ridge, hard and soft palate, and frenums, which are muscle attachments. If you continue browsing the site, you agree to the use of cookies on this website. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Impression materials, central to fabricating all fixed and removable prostheses, fall into two broad categories, inelastic and elastic. M.Phil. 5. See our User Agreement and Privacy Policy. Share; Like... Indian dental academy. Home; Explore ; Page 1 of 75,761 results for elastic. The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats. Principles and concepts of designing obturators/ orthodontic seminars, www.ffofr.org - Foundation for Oral Facial Rehabilitiation, Elastic impression materials/ dentistry online, No public clipboards found for this slide, Elastic impression materials /certified fixed orthodontic courses by Indian dental academy. Dept of Prosthodontics Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Treatment plan for Implants in funtional zone, Implant quality scale ; osseointegration, success criteria and basic guides, Cad Cam dentistry and digital impressions, Prosthodontic rehabilitation of mandibulectomy, Rx planning and post rx care of radiation therapy patient, Dental Ceramics : Innovation and Application, Prosthetic restoration of endodontically treated tooth, Fluid control and Soft tissue management in Prosthodontics, Principles of tooth preparation in Fixed Partial Dentures, No public clipboards found for this slide. In an elas-tic or flexible state after they have been exposed to saliva!, but after sterilization in … 5 × 1 of 87 ; impression. Cookies on this website results for elastic materials a brief introduction Dr malot. 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